PasswordStore: Clean up expectations about rewriting vectors of forms

chrome/browser/password_manager/native_backend_libsecret.h

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_LIBSECRET_H_
 #define CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_LIBSECRET_H_
 
 #include <libsecret/secret.h>
 
 #include <string>
@@ skipping 68 matching lines @@
   enum TimestampToCompare {
     CREATION_TIMESTAMP,
     SYNC_TIMESTAMP,
   };
 
   enum AddUpdateLoginSearchOptions {
     SEARCH_USE_SUBMIT,
     SEARCH_IGNORE_SUBMIT,
   };
 
-  // Search that is used in AddLogin and UpdateLogin methods
-  void AddUpdateLoginSearch(const autofill::PasswordForm& lookup_form,
-                            AddUpdateLoginSearchOptions options,
-                            ScopedVector<autofill::PasswordForm>* forms);
+  // Returns credentials matching |lookup_form| and |options|.
+  ScopedVector<autofill::PasswordForm> AddUpdateLoginSearch(
+      const autofill::PasswordForm& lookup_form,
+      AddUpdateLoginSearchOptions options);
 
   // Adds a login form without checking for one to replace first.
   bool RawAddLogin(const autofill::PasswordForm& form);
 
   enum GetLoginsListOptions {
     ALL_LOGINS,
     AUTOFILLABLE_LOGINS,
     BLACKLISTED_LOGINS,
   };
 
-  // Reads PasswordForms from the keyring with the given autofillability state.
+  // Overwrites |forms| with credentials matching |options| from the keyring. If
+  // |lookup_form| is not NULL, only retrieves credentials PSL-matching it. In
+  // case of failures returns false and erases |forms|.
   bool GetLoginsList(const autofill::PasswordForm* lookup_form,
                      GetLoginsListOptions options,
                      ScopedVector<autofill::PasswordForm>* forms);
 
-  // Helper for GetLoginsCreatedBetween().
-  bool GetAllLogins(ScopedVector<autofill::PasswordForm>* forms);
-
   // Retrieves password created/synced in the time interval. Returns |true| if
   // the operation succeeded.
   bool GetLoginsBetween(base::Time get_begin,
                         base::Time get_end,
                         TimestampToCompare date_to_compare,
                         ScopedVector<autofill::PasswordForm>* forms);
 
   // Removes password created/synced in the time interval. Returns |true| if the
   // operation succeeded. |changes| will contain the changes applied.
   bool RemoveLoginsBetween(base::Time get_begin,
                            base::Time get_end,
                            TimestampToCompare date_to_compare,
                            password_manager::PasswordStoreChangeList* changes);
 
   // convert data get from Libsecret to Passwordform
-  bool ConvertFormList(GList* found,
-                       const autofill::PasswordForm* lookup_form,
-                       ScopedVector<autofill::PasswordForm>* forms);
+  ScopedVector<autofill::PasswordForm> ConvertFormList(
+      GList* found,
+      const autofill::PasswordForm* lookup_form);
 
   // Generates a profile-specific app string based on profile_id_.
   static std::string GetProfileSpecificAppString(LocalProfileId id);
 
   // The app string, possibly based on the local profile id.
   std::string app_string_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeBackendLibsecret);
 };
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_LIBSECRET_H_